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WO2023165874A1 - Composés herbicides à base de pyrimidinyl-oxy-quinoléine - Google Patents

Composés herbicides à base de pyrimidinyl-oxy-quinoléine Download PDF

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Publication number
WO2023165874A1
WO2023165874A1 PCT/EP2023/054447 EP2023054447W WO2023165874A1 WO 2023165874 A1 WO2023165874 A1 WO 2023165874A1 EP 2023054447 W EP2023054447 W EP 2023054447W WO 2023165874 A1 WO2023165874 A1 WO 2023165874A1
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WIPO (PCT)
Prior art keywords
formula
compound
hydrogen
mmol
methyl
Prior art date
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PCT/EP2023/054447
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English (en)
Inventor
Vanitha ACHARYA
Sunil CHAKAVE
Mangala Phadte
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Syngenta Crop Protection AG Switzerland
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Syngenta Crop Protection AG Switzerland
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Priority to US18/842,685 priority Critical patent/US20250179052A1/en
Priority to EP23706778.0A priority patent/EP4486735A1/fr
Priority to CN202380024016.3A priority patent/CN118786122A/zh
Publication of WO2023165874A1 publication Critical patent/WO2023165874A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P13/00—Herbicides; Algicides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

  • the present invention relates to novel herbicidal compounds, to processes for their preparation, to herbicidal compositions which comprise the novel compounds, and to their use for controlling weeds, in particular in crops of useful plants, or for inhibiting plant growth.
  • the present invention relates to heteroaryloxyquinazoline and heteroaryloxyquinoline compounds.
  • Y 1 is N or CR 3 ;
  • Y 2 is N or CR 4 ; with the proviso that Y 1 and Y 2 are not both N;
  • R 1 is selected from the group consisting of hydrogen, halogen, Ci-Csalkyl and Ci-Cshaloalkyl
  • R 2 is selected from the group consisting of hydrogen, halogen, hydroxyl, Ci- Csalkyl, Ci-Csalkoxy-, Ci-Cshaloalkoxy- and Ci-Cshaloalkyl;
  • R 3 is selected from the group consisting of hydrogen, halogen, -CN, nitro, Ci- C4alkyl, C2-C4alkenyl-, C2-C4alkynyl-, Ci-C4haloalkyl-, Ci-C4alkoxy-, Ci- C4haloalkoxy- and -S(O) n Ci-C4alkyl;
  • R 4 is selected from the group consisting of hydrogen, halogen, -CN, nitro, Ci- C4alkyl, C2-C4alkenyl-, C2-C4alkynyl-, Ci-C4haloalkyl-, Ci-C4alkoxy-, Ci- C4haloalkoxy- and -S(O) n Ci-C4alkyl; each R 5 is independently selected from the group consisting of halogen, -CN, nitro, Ci-C4alkyl, C2-C4alkenyl, C2-C4alkynyl, Ci-C4haloalkyl, Ci-C4alkoxy-, Ci- C4haloalkoxy-, -S(O) p Ci-C4alkyl and -S(O) p Ci-C4haloalkyl;
  • R 6 is independently selected from the group consisting of hydrogen, halogen, -CN, hydroxy, Ci-Cealkyl, Ci-Cehaloalkyl-, Ci-Cealkoxy-, Ci-Cehaloalkoxy- and Cs-Cecycloalkyl-;
  • Z 1 is N or CR 7 ;
  • Z 2 is N or CR 8 ;
  • R 7 is selected from the group consisting of hydrogen, Ci-C4alkyl, halogen, - CN, nitro, C2-C4alkenyl, C2-C4alkynyl, Ci-C4haloalkyl, Ci-C4alkoxy-, Ci- C4haloalkoxy-, -S(O) p Ci-C4alkyl and -S(O) p Ci-C4haloalkyl;
  • R 8 is selected from the group consisting of hydrogen, Ci-C4alkyl, halogen, - CN, nitro, C2-C4alkenyl, C2-C4alkynyl, Ci-C4haloalkyl, Ci-C4alkoxy-, Ci- C4haloalkoxy-, -S(O) p Ci-C4alkyl and -S(O) p Ci-C4haloalkyl;
  • Ci-C4alkyl- and Ci-Cealkyl- includes, for example, methyl (Me, CH3), ethyl (Et, C2H5), n-propyl (n-Pr), isopropyl (/-Pr), n-butyl (n-Bu), isobutyl (/-Bu), sec-butyl and terf-butyl (t-Bu).
  • Ci-C2alkyl is methyl (Me, CH3) or ethyl (Et, C2H5).
  • Halogen includes, for example, fluorine, chlorine, bromine or iodine. The same correspondingly applies to halogen in the context of other definitions, such as haloalkyl.
  • Ci-Cehaloalkyl- includes, for example, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 2- fluoroethyl, 2-chloroethyl, pentafluoroethyl, 1 , 1 -difluoro-2,2,2-trichloroethyl, 2, 2,3,3- tetrafluoropropyl and 2,2,2-trichloroethyl, heptafluoro-n-propyl and perfluoro-n-hexyl.
  • Ci-C4haloalkyl- and Ci-C2haloalkyl include, for example, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 2- fluoroethyl, 2-chloroethyl, pentafluoroethyl, or 1 , 1 -difluoro-2,2,2-trichloroethyl.
  • Ci-C4alkoxy and Ci-C2alkoxy includes, for example, methoxy and ethoxy.
  • Ci-Cehaloalkoxy- and Ci-C4haloalkoxy- include, for example, fluoromethoxy, difluoromethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 1 ,1 ,2,2-tetrafluoroethoxy, 2- fluoroethoxy, 2-chloroethoxy, 2,2-difluoroethoxy or 2,2,2-trichloroethoxy, preferably difluoromethoxy, 2-chloroethoxy or trifluoromethoxy.
  • C2-C4alkynyl- refers to a straight or branched hydrocarbon chain radical group consisting solely of carbon and hydrogen atoms, containing at least one triple bond, having from two to four carbon atoms, and which is attached to the rest of the molecule by a single bond.
  • Examples of C2-C4alkynyl include, but are not limited to, prop-1 -ynyl, propargyl (prop-2-ynyl), and but-1-ynyl.
  • Ci-C4alkyl-S- (alkylthio) includes, for example, methylthio, ethylthio, propylthio, isopropylthio, n-butylthio, isobutylthio, sec-butylthio or tert-butylthio, preferably methylthio or ethylthio.
  • Ci-C4alkyl-S(O)- (alkylsulfinyl) includes, for example, methylsulfinyl, ethylsulfinyl, propylsulfinyl, isopropylsulfinyl, n-butylsulfinyl, isobutylsulfinyl, secbutylsulfinyl or tert-butylsulfinyl, preferably methylsulfinyl or ethylsulfinyl.
  • Ci-C4alkyl-S(O)2- (alkylsulfonyl) includes, for example, methylsulfonyl, ethylsulfonyl, propylsulfonyl, isopropylsulfonyl, n-butylsulfonyl, isobutylsulfonyl, secbutylsulfonyl or tert-butylsulfonyl, preferably methylsulfonyl or ethylsulfonyl.
  • Z 1 is CR 7 (preferably CH) and Z 2 is CR 8 (preferably CH); or Z 1 is CR 7 (preferably CH) and Z 2 is N; or Z 1 is N and Z 2 is N; or Z 1 is N and Z 2 is CR 8 .
  • Z 1 is N and Z 2 is N.
  • a compound of Formula (I) wherein R 6 is selected from the group consisting of hydrogen, Ci- Cealkyl (preferably methyl), Ci-Cealkoxy- (preferably methoxy- or ethoxy-) and Ci- Cehaloalkyl- (preferably -CCIF2, -CHF2 or CF3).
  • R 6 is selected from the group consisting of hydrogen, Ci-Cealkyl (preferably methyl) and Ci-Cehaloalkyl- (preferably -CHF2 or CF3).
  • R 6 is selected from the group consisting of hydrogen, methyl and CF3.
  • a compound of Formula (I) wherein R 9 is hydrogen.
  • a compound of Formula (I) wherein R 9 is methyl.
  • R 1 and R 2 are hydrogen, Y 1 is CR 3 and Y 2 is N wherein R 3 is Ci-C4alkyl (preferably methyl) or halo (preferably chloro), n is 0, R 6 is selected from the group consisting of hydrogen, Ci- Cealkyl (preferably methyl), Ci-Cealkoxy- (preferably methoxy or ethoxy) and Ci- Cehaloalkyl- (preferably -CICF2 or CF3), Z 1 is N or CH, Z 2 is N, and R 9 is hydrogen or methyl.
  • R 1 and R 2 are hydrogen, Y 1 is CR 3 and Y 2 is N wherein R 3 is Ci-C4alkyl (preferably methyl) or halo (preferably chloro), n is 0, R 6 is selected from the group consisting of hydrogen, C1- Cealkyl (preferably methyl), Ci-Cealkoxy- (preferably methoxy) and Ci-Cehaloalkyl- (preferably CF3), Z 1 is N, Z 2 is N, and R 9 is hydrogen or methyl.
  • Compounds of Formula (I) may contain asymmetric centres and may be present as a single enantiomer, pairs of enantiomers in any proportion or, where more than one asymmetric centre are present, contain diastereoisomers in all possible ratios. Typically one of the enantiomers has enhanced biological activity compared to the other possibilities.
  • the present invention also provides agronomically acceptable salts of compounds of Formula (I). Salts that the compounds of Formula (I) may form with amines, including primary, secondary and tertiary amines (for example ammonia, dimethylamine and triethylamine), alkali metal and alkaline earth metal bases, transition metals or quaternary ammonium bases are preferred.
  • amines including primary, secondary and tertiary amines (for example ammonia, dimethylamine and triethylamine), alkali metal and alkaline earth metal bases, transition metals or quaternary ammonium bases are preferred.
  • the compounds of Formula (I) according to the invention can be used as herbicides by themselves, but they are generally formulated into herbicidal compositions using formulation adjuvants, such as carriers, solvents and surfaceactive agents (SAA).
  • formulation adjuvants such as carriers, solvents and surfaceactive agents (SAA).
  • SAA surfaceactive agents
  • the present invention further provides a herbicidal composition comprising a herbicidal compound according to any one of the previous claims and an agriculturally acceptable formulation adjuvant.
  • the composition can be in the form of concentrates which are diluted prior to use, although ready-to-use compositions can also be made. The final dilution is usually made with water, but can be made instead of, or in addition to, water, with, for example, liquid fertilisers, micronutrients, biological organisms, oil or solvents.
  • the herbicidal compositions generally comprise from 0.1 to 99 % by weight, especially from 0.1 to 95 % by weight, compounds of Formula I and from 1 to 99.9 % by weight of a formulation adjuvant which preferably includes from 0 to 25 % by weight of a surface-active substance.
  • compositions can be chosen from a number of formulation types. These include an emulsion concentrate (EC), a suspension concentrate (SC), a suspo- emulsion (SE), a capsule suspension (CS), a water dispersible granule (WG), an emulsifiable granule (EG), an emulsion, water in oil (EG), an emulsion, oil in water (EW), a micro-emulsion (ME), an oil dispersion (OD), an oil miscible flowable (OF), an oil miscible liquid (OL), a soluble concentrate (SL), an ultra-low volume suspension (Sil), an ultra-low volume liquid (UL), a technical concentrate (TK), a dispersible concentrate (DC), a soluble powder (SP), a wettable powder (WP) and a soluble granule (SG).
  • formulation type chosen in any instance will depend upon the particular purpose envisaged and the physical, chemical and biological properties of the compound of Formula (I).
  • Soluble powders may be prepared by mixing a compound of Formula (I) with one or more water-soluble inorganic salts (such as sodium bicarbonate, sodium carbonate or magnesium sulphate) or one or more water-soluble organic solids (such as a polysaccharide) and, optionally, one or more wetting agents, one or more dispersing agents or a mixture of said agents to improve water dispersibility/solubility. The mixture is then ground to a fine powder. Similar compositions may also be granulated to form water soluble granules (SG).
  • water-soluble inorganic salts such as sodium bicarbonate, sodium carbonate or magnesium sulphate
  • water-soluble organic solids such as a polysaccharide
  • WP Wettable powders
  • WG Water dispersible granules
  • Granules may be formed either by granulating a mixture of a compound of Formula (I) and one or more powdered solid diluents or carriers, or from preformed blank granules by absorbing a compound of Formula (I) (or a solution thereof, in a suitable agent) in a porous granular material (such as pumice, attapulgite clays, fuller's earth, kieselguhr, diatomaceous earths or ground corn cobs) or by adsorbing a compound of Formula (I) (or a solution thereof, in a suitable agent) on to a hard core material (such as sands, silicates, mineral carbonates, sulphates or phosphates) and drying if necessary.
  • a hard core material such as sands, silicates, mineral carbonates, sulphates or phosphates
  • Agents which are commonly used to aid absorption or adsorption include solvents (such as aliphatic and aromatic petroleum solvents, alcohols, ethers, ketones and esters) and sticking agents (such as polyvinyl acetates, polyvinyl alcohols, dextrins, sugars and vegetable oils).
  • solvents such as aliphatic and aromatic petroleum solvents, alcohols, ethers, ketones and esters
  • sticking agents such as polyvinyl acetates, polyvinyl alcohols, dextrins, sugars and vegetable oils.
  • One or more other additives may also be included in granules (for example an emulsifying agent, wetting agent or dispersing agent).
  • DC Dispersible Concentrates
  • a compound of Formula (I) may be prepared by dissolving a compound of Formula (I) in water or an organic solvent, such as a ketone, alcohol or glycol ether.
  • organic solvent such as a ketone, alcohol or glycol ether.
  • surface-active agent for example to improve water dilution or prevent crystallisation in a spray tank.
  • Emulsifiable concentrates or oil-in-water emulsions (EW) may be prepared by dissolving a compound of Formula (I) in an organic solvent (optionally containing one or more wetting agents, one or more emulsifying agents or a mixture of said agents).
  • Suitable organic solvents for use in ECs include aromatic hydrocarbons (such as alkylbenzenes or alkylnaphthalenes, exemplified by SOLVESSO 100, SOLVESSO 150 and SOLVESSO 200; SOLVESSO is a Registered Trade Mark), ketones (such as cyclohexanone or methylcyclohexanone) and alcohols (such as benzyl alcohol, furfuryl alcohol or butanol), N-alkylpyrrolidones (such as N-methylpyrrolidone or N-octylpyrrolidone), dimethyl amides of fatty acids (such as Cs-Cio fatty acid dimethylamide) and chlorinated hydrocarbons.
  • An EC product may spontaneously emulsify on addition to water, to produce an emulsion with sufficient stability to allow spray application through appropriate equipment.
  • Preparation of an EW involves obtaining a compound of Formula (I) either as a liquid (if it is not a liquid at room temperature, it may be melted at a reasonable temperature, typically below 70°C) or in solution (by dissolving it in an appropriate solvent) and then emulsifying the resultant liquid or solution into water containing one or more SAAs, under high shear, to produce an emulsion.
  • Suitable solvents for use in EWs include vegetable oils, chlorinated hydrocarbons (such as chlorobenzenes), aromatic solvents (such as alkylbenzenes or alkylnaphthalenes) and other appropriate organic solvents which have a low solubility in water.
  • Microemulsions may be prepared by mixing water with a blend of one or more solvents with one or more SAAs, to produce spontaneously a thermodynamically stable isotropic liquid formulation.
  • a compound of Formula (I) is present initially in either the water or the solvent/SAA blend.
  • Suitable solvents for use in MEs include those hereinbefore described for use in in ECs or in EWs.
  • An ME may be either an oil-in-water or a water-in-oil system (which system is present may be determined by conductivity measurements) and may be suitable for mixing water- soluble and oil-soluble pesticides in the same formulation.
  • An ME is suitable for dilution into water, either remaining as a microemulsion or forming a conventional oil- in-water emulsion.
  • SC Suspension concentrates
  • SCs may comprise aqueous or non-aqueous suspensions of finely divided insoluble solid particles of a compound of Formula (I).
  • SCs may be prepared by ball or bead milling the solid compound of Formula (I) in a suitable medium, optionally with one or more dispersing agents, to produce a fine particle suspension of the compound.
  • One or more wetting agents may be included in the composition and a suspending agent may be included to reduce the rate at which the particles settle.
  • a compound of Formula (I) may be dry milled and added to water, containing agents hereinbefore described, to produce the desired end product.
  • Aerosol formulations comprise a compound of Formula (I) and a suitable propellant (for example n-butane).
  • a compound of Formula (I) may also be dissolved or dispersed in a suitable medium (for example water or a water miscible liquid, such as n-propanol) to provide compositions for use in non-pressurised, hand-actuated spray pumps.
  • Capsule suspensions may be prepared in a manner similar to the preparation of EW formulations but with an additional polymerisation stage such that an aqueous dispersion of oil droplets is obtained, in which each oil droplet is encapsulated by a polymeric shell and contains a compound of Formula (I) and, optionally, a carrier or diluent therefor.
  • the polymeric shell may be produced by either an interfacial polycondensation reaction or by a coacervation procedure.
  • the compositions may provide for controlled release of the compound of Formula (I) and they may be used for seed treatment.
  • a compound of Formula (I) may also be formulated in a biodegradable polymeric matrix to provide a slow, controlled release of the compound.
  • the composition may include one or more additives to improve the biological performance of the composition, for example by improving wetting, retention or distribution on surfaces; resistance to rain on treated surfaces; or uptake or mobility of a compound of Formula (I).
  • additives include surface active agents (SAAs), spray additives based on oils, for example certain mineral oils or natural plant oils (such as soy bean and rape seed oil), modified plant oils such as methylated rape seed oil (MRSO), and blends of these with other bio-enhancing adjuvants (ingredients which may aid or modify the action of a compound of Formula (I).
  • wetting agents, dispersing agents and emulsifying agents may be SAAs of the cationic, anionic, amphoteric or non-ionic type.
  • Suitable SAAs of the cationic type include quaternary ammonium compounds (for example cetyltri methyl ammonium bromide), imidazolines and amine salts.
  • Suitable anionic SAAs include alkali metals salts of fatty acids, salts of aliphatic monoesters of sulphuric acid (for example sodium lauryl sulphate), salts of sulphonated aromatic compounds (for example sodium dodecylbenzenesulphonate, calcium dodecylbenzenesulphonate, butylnaphthalene sulphonate and mixtures of sodium di-/sopropyl- and tri-/sopropyl-naphthalene sulphonates), ether sulphates, alcohol ether sulphates (for example sodium laureth-3-sulphate), ether carboxylates (for example sodium laureth-3-carboxylate), phosphate esters (products from the reaction between one or more fatty alcohols and phosphoric acid (predominately mono-esters) or phosphorus pentoxide (predominately di-esters), for example the reaction between lauryl alcohol and tetraphosphoric acid
  • Suitable SAAs of the amphoteric type include betaines, propionates and glycinates.
  • Suitable SAAs of the non-ionic type include condensation products of alkylene oxides, such as ethylene oxide, propylene oxide, butylene oxide or mixtures thereof, with fatty alcohols (such as oleyl alcohol or cetyl alcohol) or with alkylphenols (such as octylphenol, nonylphenol or octylcresol); partial esters derived from long chain fatty acids or hexitol anhydrides; condensation products of said partial esters with ethylene oxide; block polymers (comprising ethylene oxide and propylene oxide); alkanolamides; simple esters (for example fatty acid polyethylene glycol esters); amine oxides (for example lauryl dimethyl amine oxide); lecithins and sorbitans and esters thereof, alkyl polyglycosides and tristyrylphenols.
  • alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide or mixtures thereof
  • fatty alcohols such as oleyl
  • Suitable suspending agents include hydrophilic colloids (such as polysaccharides, polyvinylpyrrolidone or sodium carboxymethylcellulose) and swelling clays (such as bentonite or attapulgite).
  • hydrophilic colloids such as polysaccharides, polyvinylpyrrolidone or sodium carboxymethylcellulose
  • swelling clays such as bentonite or attapulgite.
  • the compounds of present invention can also be used in mixture with one or more additional herbicides and/or plant growth regulators.
  • herbicides or plant growth regulators examples include acetochlor, acifluorfen (including acifluorfen-sodium), aclonifen, ametryn, amicarbazone, aminopyralid, aminotriazole, atrazine, beflubutamid-M, benquitrione, bensulfuron (including bensulfuron-methyl), bentazone, bicyclopyrone, bilanafos, bipyrazone, bispyribac-sodium, bixlozone, bromacil, bromoxynil, butachlor, butafenacil, carfentrazone (including carfentrazone- ethyl), cloransulam (including cloransulam-methyl), chlorimuron (including chlorimuron-ethyl), chlorotoluron, chlorsulfuron, cinmethylin, clacyfos, clethodim, clodinafop (including clodinaf
  • 5-carboxylic acid ethyl ester 4-hydroxy-1-methoxy-5-methyl-3-[4-(trifluoromethyl)-2- pyridyl]imidazolidin-2-one, 4-hydroxy-1,5-dimethyl-3-[4-(trifluoromethyl)-2- pyridyl]imidazolidin-2-one, 5-ethoxy-4-hydroxy-1-methyl-3-[4-(trifluoromethyl)-2- pyridyl]imidazolidin-2-one, 4-hydroxy-1-methyl-3-[4-(trifluoromethyl)-2- pyridyl]imidazolidin-2-one, 4-hydroxy-1,5-dimethyl-3-[1-methyl-5-
  • the compound of Formula (I) can also be used in mixtures with other agrochemicals such as fungicides, nematicides or insecticides, examples of which are given in The Pesticide Manual.
  • the mixing ratio of the compound of Formula (I) to the mixing partner is preferably from 1 : 100 to 1000:1.
  • mixtures can advantageously be used in the above-mentioned formulations (in which case "active ingredient” relates to the respective mixture of compound of Formula (I) with the mixing partner).
  • the compounds or mixtures of the present invention can also be used in combination with one or more herbicide safeners.
  • herbicide safeners include benoxacor, cloquintocet (including cloquintocet-mexyl), cyprosulfamide, dichlormid, fenchlorazole (including fenchlorazole-ethyl), fenclorim, fluxofenim, furilazole, isoxadifen (including isoxadifen-ethyl), mefenpyr (including mefenpyr-diethyl), metcamifen and oxabetrinil.
  • mixtures of a compound of Formula (I) with cyprosulfamide, isoxadifen-ethyl, cloquintocet-mexyl and/or metcamifen are particularly preferred.
  • the safeners of the compound of Formula (I) may also be in the form of esters or salts, as mentioned e.g. in The Pesticide Manual, 16 th Edition (BCPC), 2012.
  • the reference to cloquintocet-mexyl also applies to a lithium, sodium, potassium, calcium, magnesium, aluminium, iron, ammonium, quaternary ammonium, sulfonium or phosphonium salt thereof as disclosed in WO 02/34048.
  • the mixing ratio of compound of Formula (I) to safener is from 100: 1 to 1:10, especially from 20: 1 to 1 : 1.
  • the present invention still further provides a method of controlling weeds at a locus said method comprising application to the locus of a weed controlling amount of a composition comprising a compound of Formula (I).
  • the present invention may further provide a method of selectively controlling weeds at a locus comprising crop plants and weeds, wherein the method comprises application to the locus of a weed controlling amount of a composition according to the present invention.
  • Controlling means killing, reducing or retarding growth or preventing or reducing germination. It is noted that the compounds of the present invention show a much-improved selectivity compared to know, structurally similar compounds. Generally the plants to be controlled are unwanted plants (weeds).
  • Locus means the area in which the plants are growing or will grow. The application may be applied to the locus pre-emergence and/or postemergence of the crop plant. Some crop plants may be inherently tolerant to herbicidal effects of compounds of Formula (I). Preferred crop plants include maize, wheat, barley and rice.
  • the rates of application of compounds of Formula I may vary within wide limits and depend on the nature of the soil, the method of application (pre- or postemergence; seed dressing; application to the seed furrow; no tillage application etc.), the crop plant, the weed(s) to be controlled, the prevailing climatic conditions, and other factors governed by the method of application, the time of application and the target crop.
  • the compounds of Formula I according to the invention are generally applied at a rate of from 10 to 2500 g/ha, especially from 25 to 1000 g/ha, more especially from 25 to 250 g/ha.
  • the application is generally made by spraying the composition, typically by tractor mounted sprayer for large areas, but other methods such as dusting (for powders), drip or drench can also be used.
  • Crop plants are to be understood as also including those crop plants which have been rendered tolerant to other herbicides or classes of herbicides (e.g. ALS-, GS-, EPSPS-, PPO-, HPPD-, -PDS and ACCase-inhibitors) by conventional methods of breeding or by genetic engineering.
  • herbicides or classes of herbicides e.g. ALS-, GS-, EPSPS-, PPO-, HPPD-, -PDS and ACCase-inhibitors
  • An example of a crop that has been rendered tolerant to imidazolinones, e.g. imazamox, by conventional methods of breeding is Clearfield® summer rape (canola).
  • crops that have been rendered tolerant to herbicides by genetic engineering methods include e.g. glyphosate- and glufosinate-resistant maize varieties commercially available under the trade names RoundupReady® and LibertyLink®.
  • the compounds of the present invention may also be used
  • Crop plants are also to be understood as being those which have been rendered resistant to harmful insects by genetic engineering methods, for example Bt maize (resistant to European corn borer), Bt cotton (resistant to cotton boll weevil) and also Bt potatoes (resistant to Colorado beetle).
  • Bt maize are the Bt 176 maize hybrids of NK® (Syngenta Seeds).
  • the Bt toxin is a protein that is formed naturally by Bacillus thuringiensis soil bacteria.
  • Examples of toxins, or transgenic plants able to synthesise such toxins are described in EP-A-451 878, EP-A-374 753, WO 93/07278, WO 95/34656, WO 03/052073 and EP-A-427 529.
  • transgenic plants comprising one or more genes that code for an insecticidal resistance and express one or more toxins are KnockOut® (maize), Yield Gard® (maize), NuCOTIN33B® (cotton), Bollgard® (cotton), NewLeaf® (potatoes), NatureGard® and Protexcta®.
  • Plant crops or seed material thereof can be both resistant to herbicides and, at the same time, resistant to insect feeding (“stacked” transgenic events).
  • seed can have the ability to express an insecticidal Cry3 protein while at the same time being tolerant to glyphosate.
  • Crop plants are also to be understood to include those which are obtained by conventional methods of breeding or genetic engineering and contain so-called output traits (e.g. improved storage stability, higher nutritional value and improved flavour).
  • output traits e.g. improved storage stability, higher nutritional value and improved flavour.
  • the compositions can be used to control unwanted plants (collectively, ‘weeds’).
  • weeds to be controlled may be both monocotyledonous species, for example Agrostis, Alopecurus, Avena, Brachiaria, Bromus, Cenchrus, Cyperus, Digitaria, Echinochloa, Eleusine, Lolium, Monochoria, Rottboellia, Sagittaria, Scirpus, Setaria and Sorghum, and dicotyledonous species, for example Abutilon, Amaranthus, Ambrosia, Chenopodium, Chrysanthemum, Conyza, Galium, Ipomoea, Nasturtium, Sida, Sinapis, Solanum, Stellaria, Veronica, Viola and Xanthium.
  • Agrostis Alopecurus
  • Avena Brachiaria
  • Bromus Cenchrus
  • Cyperus Digitaria
  • Echinochloa Eleusine
  • Lolium Monochoria
  • a compound of Formula I may be prepared from a compound of Formula A by reaction with a compound of Formula II (where LG represents a suitable leaving group such as F, Cl, Br or SO2Me) in the presence of a suitable base and in a suitable solvent.
  • Suitable bases may include NaH, K2CO3, CS2CO3.
  • Suitable solvents may include THF, CH3CN or DMF.
  • Compounds of Formula II are commercially available or may be prepared by known methods.
  • a compound of Formula A may be prepared from a compound of Formula B (where PG represents a suitable protecting group such as Me or Tf) by a deprotection reaction in a suitable solvent.
  • Suitable solvents may include DCM, DCE or CH3CN.
  • a compound of Formula A may be prepared from compound of Formula C, (where X 1 is a leaving group such as Cl, Br, or F) by reaction with acetohydroxamic acid in the presence of a suitable base and in a suitable solvent (as described in Organic Letters (2016), 18 (9), 2244-2247).
  • Suitable bases may include K2CO3.
  • Suitable solvents may include DMSO.
  • the first step involves reaction with a compound of Formula IV (where M is a suitable organometallic such as Li or MgHal), optionally in the presence of a suitable catalyst and in a suitable solvent.
  • Suitable catalysts may include lanthanum (III) chloride bis(lithium chloride) complex.
  • Suitable solvents may include THF.
  • the second step involves reaction with a suitable oxidising agent in a suitable solvent.
  • Suitable oxidising agents may include 3- dichloro-5,6-dicyano-1 ,4-benzoquinone or potassium ferricyanide.
  • Suitable solvents may include THF or Et2O/water.
  • Compounds of Formula IV are commercially available or may be prepared by known methods.
  • Suitable catalysts may include copper chloride, iron(lll) acetylacetonate and suitable solvents may include THF.
  • Compounds of Formula V are commercially available or may be prepared by known methods.
  • a Compound of Formula F may be prepared from compound of Formula H by reaction with a suitable halogenating agent.
  • Suitable halogenating agents may include phosphorus oxychloride or phosphorus oxybromide.
  • a compound of Formula H may be prepared from a compound of Formula D by reaction with a compound of Formula III and an ammonia source, in the presence of a suitable base and optionally in the presence of a suitable catalyst and in a suitable solvent.
  • Suitable ammonia sources may include ammonium acetate.
  • Suitable bases may include triethylamine.
  • Suitable catalysts may include 4-dimethylaminopyridine.
  • Suitable solvents may include toluene.
  • Compounds of Formula D and of Formula III are commercially available or may be prepared by known methods.
  • Suitable ammonia sources may include ammonium acetate.
  • Suitable bases may include triethylamine.
  • Suitable catalysts may include 4-dimethylaminopyridine.
  • Suitable solvents may include toluene.
  • Compounds of Formula E and of Formula VI are commercially available or may be prepared by known methods.
  • a compound of Formula Bb may be prepared from compound of Formula F, by treatment with a suitable reducing agent in the presence of a suitable catalyst in a suitable solvent.
  • suitable reducing agents may include hydrogen gas.
  • Suitable catalysts may include Pd/C.
  • Suitable solvents may include methanol.
  • Step-3 Synthesis of 5-(5-chloropyrimidin-2-yl)oxy-4-methyl-2-(trifluoromethyl) quinazoline (Compound 1.001)
  • Step-1 Preparation of 2-[chloro(difluoro)methyl]-5-methoxy-quinazoline (11)
  • Step-1 Preparation of (2-amino-6-methoxy-phenyl) methanol (I4):
  • Step-3 Preparation of 2,2,2-trichloro-/V-(2-formyl-3-methoxy-phenyl) acetamide (I6)
  • Step-7 preparation of 2-ethoxyquinazolin-5-ol (110):
  • Step-1 Preparation of 8-bromo-5-methoxy-2-(trifluoromethyl) quinolin-4-ol (111)
  • Step-3 Preparation of 4-bromo-5-methoxy-2-(trifluoromethyl)quinoline (113): To a solution of 5-methoxy-2-(trifluoromethyl) quinolin-4-ol 112 (3.3 g, 14 mmol) in toluene (35 mL) was added phosphoryl bromide (6.1 g, 20 mmol) and heated to 100 °C for 30 min then gradually heating was increased to 140 °C and stirred at this temperature for 5 h. The reaction mixture was cooled to 0 °C and quenched by adding sodium bicarbonate solution till pH 7 (checked by pH paper). The mixture was extracted with ethyl acetate (3 x 100 mL).
  • Step-4 Preparation of 5-methoxy-2-(trifluoromethyl)quinoline (114):
  • Step-6 Preparation of 5-(5-chloropyrimidin-2-yl)oxy-2 (trifluoromethyl) quinoline (1.020):
  • AMARE Amaranthus retoflexus
  • AMATA Amaranthus tuberculatus
  • EHCG Echinochloa crus-galli
  • IPHE Ipomoea hederacea
  • SETFA Setaria faberi
  • the plants After cultivation for one day (pre-emergence) or after 8 days cultivation (post-emergence) under controlled conditions in a glasshouse (at 24/16°C, day/night; 14 hours light; 65 % humidity), the plants are sprayed with an aqueous spray solution derived from the formulation of the technical active ingredient in acetone I water (50:50) solution containing 0.5% Tween 20 (polyoxyethelyene sorbitan monolaurate, CAS RN 9005- 64-5). Compounds are applied at 250 g/ha unless otherwise stated. The test plants are then grown in a glasshouse under controlled conditions in a glasshouse (at 24/16°C, day/night; 14 hours light; 65 % humidity) and watered twice daily.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

La présente invention concerne des composés de formule (I), ou un sel agronomiquement acceptable desdits composés, Y1, Y2, Z1, Z2, R1, R2, R5, R6, R9 et n étant tels que définis dans la description. L'invention concerne en outre des compositions herbicides qui comprennent un composé de formule (I) et l'utilisation de composés de formule (I) pour lutter contre les mauvaises herbes, en particulier dans des cultures de plantes utiles.
PCT/EP2023/054447 2022-03-01 2023-02-22 Composés herbicides à base de pyrimidinyl-oxy-quinoléine Ceased WO2023165874A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US18/842,685 US20250179052A1 (en) 2022-03-01 2023-02-22 Pyrimidinyl-oxy-quinoline based herbicidal compounds
EP23706778.0A EP4486735A1 (fr) 2022-03-01 2023-02-22 Composés herbicides à base de pyrimidinyl-oxy-quinoléine
CN202380024016.3A CN118786122A (zh) 2022-03-01 2023-02-22 基于嘧啶基-氧基-喹啉的除草化合物

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IN202211010935 2022-03-01

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WO (1) WO2023165874A1 (fr)

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AR128577A1 (es) 2024-05-22
EP4486735A1 (fr) 2025-01-08
CN118786122A (zh) 2024-10-15

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